Which rules evolutionary change: Life or climate?

The fossil record over the last half a billion years shows biodiversity as a zigzagging pattern of species births and extinctions. For decades scientist have attempted to answer the question: Which rules supreme—life or ...

Physicists embark on a hunt for a long-sought quantum glow

For "Star Wars" fans, the streaking stars seen from the cockpit of the Millennium Falcon as it jumps to hyperspace is a canonical image. But what would a pilot actually see if she could accelerate in an instant through the ...

New model simulates phenomena in a shock wave

Much of the study in the field of hypersonics focuses on understanding the disturbances in the flow of gases near the surface of the vehicle—the boundary layer—rather than what's happening in the shock, which typically ...

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